Anatomy of Bipedalism

Bipedalism requires
adjustments to the inner ear, since bipedal animals must be able to
balance on two legs. There are major changes in the feet, which include a
reduction in the size of the toes, a non-opposable hallux (big toe), which
is relocated in line with the other toes, and the formation of an foot
arch (as opposed to flat feet). The redesigned foot forms a platform to be
able to support the entire weight of the body.

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Last Modified June 21, 2006